/Engine/Source/Runtime/Online/HTTP/Public/HttpRequestAdapter.h
Gets an URL parameter. expected format is ?Key=Value&Key=Value... If that format is not used, this function will not work.
the parameter value string.
virtual [FString](API\Runtime\Core\Containers\FString) GetURLParameter ( const [FString](API\Runtime\Core\Containers\FString) & ParameterName ) const